What's the simplest program you can write? Dr Steve Bagley on the layers of abstraction that bulk up Hello World.

EXTRA BITS: https://youtu.be/wxZFWvgyuYs

https://www.facebook.com/computerphile
https://twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: https://bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com